== sanity test 184c: Concurrent write and layout swap ==== 19:30:43 (1789601443) 21+0 records in 21+0 records out 22020096 bytes (22 MB, 21 MiB) copied, 1.69882 s, 13.0 MB/s 37+0 records in 37+0 records out 38797312 bytes (39 MB, 37 MiB) copied, 5.05274 s, 7.7 MB/s ref file size: ref1(22020096), ref2(38797312) 1344+0 records in 1344+0 records out 22020096 bytes (22 MB, 21 MiB) copied, 6.71327 s, 3.3 MB/s Copied 458752 bytes before swapping layout...